What is the difference between Worker Threads and child processes?
Worker Threads run JavaScript in additional threads within the same Node.js process and can share certain memory mechanisms. Child processes are separate operating-system processes with stronger isolation and separate process resources. Worker Threads are often suitable for CPU-heavy JavaScript, while child processes can be useful when process isolation or running another executable is required.
Key Takeaways
- Worker Threads are threads within a Node.js process.
- Child processes are separate OS processes.
- Choose based on CPU work, isolation, memory model, and executable requirements.
Knowledge Check
Which statement best describes child processes?